InChI=1S/C33H40N2O9/c1-38-19-7-8-23-22(14-19)20-9-10-35-16-18-13-27(44-32(36)17-11-25(39-2)30(41-4)26(12-17)40-3)31(42-5)28(33(37)43-6)21(18)15-24(35)29(20)34-23/h7-8,11-12,14,18,21,24,27-28,31,34H,9-10,13,15-16H2,1-6H3/t18-,21+,24-,27-,28+,31+/m1/s1